Impulse transmitting apparatus



DeC- 28,1948 J. B. R. KILHOLM 2,457,3814

IMPULSE TRANSMITTING APPARATUS x 2 Sheets-Sheet` l Filed Nov. 1o) 1943 dE R KZZHOLM .7: ma :maanmubaknammmwn m m T Wr b,. Y B

Dec. 28, 1948. J. B. R. KlLHoLM 2,457,381

l IMPULSE TRANSMITTING APPARATUS Filed Nov. 10. 1943 2 Sheets-Sheet 2V19a I WEA/TOR; J R KILHOLM Patented Dec. 28, 1948 J'oin semi-ata''Ihis-` invention'` relates to?-` an iapparatus; fortransmittingimpulses-:fromi travelling; articles`y to anx impulsereceiverforractuating; aede'ecting or removing mechanism'. v

One objectl of myy invention` is` tof provide an apparatus which.permitsfselectioniofcertainfpredetern'iined'.1 impulses* initiated by?said travelling articles;v Af furthen objectiittofprovidean` apparatuswhich" isadjustable:duringLoperation for varying; said selectiomy These.andfurther objectsv arie` attained. by mechanism illustratedf intT theaccompanying drawings; inwhich: i s

Fig.` 1- is` ay View in:- vertioabsectionfofl auprefi ferred embodiment:of.' my invention;.Fig.f 2 is ai section on ithe-lnevII-II; FigjlyEigfaBisa section`v on the? linerI'IIIII; Fig;1f;Fig-; 4. is* adiagi'ammatical viewoff a# detailstretchedrout' in a` plane; Fig` p is aview'. similar: tdthat; shown in' Fig; l with severaljparts in other.positions; and Fig; 6.-is a viewlwith :the parts in Vstilflfanotherposi-tion.` Y

The apparatusfaccordirxg to inventionf'may; advantageously be usediimconjunction with plants in' which: articles' such 1, as q cementez-bags;paper-ro1ls; mealbags;. boxes-f or. bottlestravel; ling on yaconveyer;aretofbe factuatediny arr lad: justable order: The-fembodiment`illustrated in the drawings and f described.- h ereinbelow fisf^particularly'v intended.' to Ygivel power impulsesf for removing ordeflecting cement-bags fr0ml1afc0n`= Veyer band, the arrangement.beingf=suchfthat each bagor every second,.,-t1f1ir dfourth,` ete." ba'gcan ,bel removed-)from ythe.-conveyerA according to theadjustment of-lthe apparatus; Ingvrother words,y the articles' 'to be' deflected-forremoved constitute elements of an arithfrnetieal progression out of theseries of articlestravellingfonthe conveyer, theapparatusvincludingfmeans -for` arbitrarily determining.: thef i commonfd-iierenceof the varithinetical progression. J

Referring to the. drawinga.y the apparatus shown comprises a suitableeasing4 l` to' which there are secured two coaxiallxarranged-,cylindrical guide members Zand 3 locatedat opposite ends ofthel casing and adapted to guide anlie-V placeable sleeve- 4 in axialdirection.KVA-helical( spring Stends to force thevsleevefftothe-startingpositionv thereof, that is to fthegleft-hand end .position, as viewedinV Figl.: The*sleeve-:ll'-isvdis-A placeable but ynot rotatably-mounted'onarshaft whichextends fthrough lthe .'ecasing` l: Byfmeans ofa-han'dle 1,- the shafteis ad'justablefin eight` different angularpositions in whichitf-is secured against unintendedn rotati'oiialymovements by 55' statenlv aenumber of smal,1ro1lersp8;and a helicalspring on s-i-inilarf resilientflmember' 9i g'Io the' ,periphery olftheysleeve Il; ythere are .secured eightv bars, l 0 (see also Figs? 2,fllffy'l' the innerv end vfaeesnof whichvarewof different; lengths andconstitute abutting faces Il disposedatqual' axialIdisteneesifremeaehpther The sleeve eisfurther providedt Witlieehtannular teeth; I 2k arranged et equal distaneeezrkomfeaehiotherirthedistance betweeneonsecutive teeth: 1.2 being equalzto the iaxial;distanceI between# consecutivey ab-utting faeesfltefitheberslls-.W ,a ,t

j1heg lzvveetlihlz"l a adaptedto cooperate with wegpewlst. i3 and; 44,1whieh. ,areactuatedby a @einen helical Sprmsfiextending-te forcethepawle-nwerdlvi that issintoensaeement'with the teeth: L2@ f The pewl'i3. fp i'votelly .meunteden 2.-P..r.r;lfm0l11ted ,i :-.r.eeketl l.vseemed tothe c. a t sing.l;l- The othl pawlM is pivotallymounteereriapmflmkiie tis Qenecteewithalever,le t. n :Die I6Asl'willfbeeeen fomzliee Lead, 5;, 11.11 ,Dewi flfymeu,Died-i011` thele'isuerrerisedtteengagea tooth Wln'etl,Y es n ntheforward direction,thats from the wards` f-therigh t in l-lig.` 1, is located ahead tytoothwhichi-ssimultaneously cooperating-wit; :the other pawl I4;V ,l Y. A,Scleeve'.- 2W dispeeedf: eeneentrieelly With re- Speer.zwane-:outwardlyof the; sleeve e ,is ,also displeeeble eXieI-fdireetonend is Qn itsinner Siderproifidee :with-er1: abutting member 2d Fie. 3)intendedgtovcooperatejwith any of the abutting faces 1UAtf-t1te-end1-direetedf towards the pew-1e. :Bend l hsthefeleevelisfprovided with bevelled feeee-` 22 and; 3: shapedv in; a manner'such:metete:freletive-mevement betweeuthe Sleeve?. endveither. 'of:meinem-s eai'dffaeeS-'Willz co :nsttute'y guide;-faees-A for` therespective pawl Sue hat 'the Apaizvlfcewfif ehde:k Qutwardlyz .0n -theguide face'soxafsy'to .b ej brought out of engagement with-thetopth; A.n The: 'sleeve 2p further v has a deWnWerd-li' proieetipefetop '2.4fen'da1-'rigid 'arm' 2EwhichveXtendsupwardly tlliliough'y an Vopening 2,6;inthgeycasingu L, vvlJ'ponj displacementv of vthe sleeve-'29 towards--thegfright'ias ,viewedv in Fig; 1, the arm-'25 acts upon' animpulsereceiver, j In the present instancefthe army 25 closes a' resilientswitch 2l diagrammaticali'y/indicated vin Fig; l. Therswitch' :2 1 isacted "up'n by a "spring 45l and adaia'ted'to operatea defiec'ting:mechanism which The arm 28 is acted upon by a helical spring 30 and bythe core 3I of a solenoid 32 which can be energized by a suitable sourceof current 33.

In Fig. l, there is also shown, in a diagrammatical manner and on areduced scale, an impulse initiating mechanism and a conveyer band 34for bags or similar articles 35. The impulse initiating mechanismcomprises a tongue 31 freely depending from a horizontal pivot 3B`andprovided with contacts 38 for cooperation with two contacts 39 providedin the circuit of the solenoid 32.

A two-armed lever 4I pivoted at 45 is at the end of one arm 42 providedwith a roller 43 which in the position shown in Fig. 1 to some eX- tentprojects through an opening 44 in the guide On the other arm 45 of thelever Y member 3. 4I there is mounted a second two-armed lever 41pivoted at 46. subject to the action of a helical spring 48. The lever41` has an abutting face 49 intended to cooperate with the stop 24 onthe sleeve 20. A pin 59 secured to the lever' 4I limits the movement ofthe lever 41 relative to the lever 4I- in an anticlockwise direction, asviewed in Fig. 1.

The mode of operation vof the apparatus describedis as follows.

Inv Fig. 1, the various parts are shown in their original or startingpositions. The apparatus' is adjusted such that every fourth of the bagstravelling on the conveyerv band 34 will be removed from the conveyerband by means of a deflecting mechanism not shown in the drawing. Tothis end, the sleeve 4 is assumed to be adjusted, by means of the handle1, into such an angular position, that the bar III, the abutting face IIof which is located at an axial distance of three steps from vtheleft-hand end face of the abutting member 2 I, is disposed in the sameradial plane as the abutting member 2|, the term step indicatingthe-axial distance between two consecutive teeth lI2 or abutting faces'I I.

When-the iirst bag 35 of a series of bagsvis travelling below the tongue31, the tongue will be swung in a clockwise direction, as viewed in Fig.l. 'As a result thereof, the contacts 38 and 39 will be engaged so asto-energize the solenoid 32 which will attract the lcore 3i. The arm 28will'be swung in a clockwise direction against the resistance of thespring 3B with` the result that the lever I9 will be swung in acounter-clockwise direction about the pivot I6. The lever I9 l will beswung through such an angle that the pivot I'8 of the pawl I4 will bemoved to the right, as viewed in Fig. 1,by a distance equal to one step,that is equal to the axial distance between consecutive teeth I2 orabutting faces Il.` Consequently, the sleeve 4 will be moved one step tothe right, whereupon the pawl I3 will engage the following tooth andthereby prevent the sleeve 4 from returning to the original or startingposition. When the first bag 35 has entirely passed beyond the tongue31, the tongue will swing downwardly with the result that the electriccurrent will be broken and the arm 28 and the lever I9 returned to thepositions shown in Fig. l by means of the spring 30. At that time, thepawl I4 will engage the following tooth.

The operation described will be repeated when the second and the thirdbags vare travelling under and beyond the tongue 31. Before the fourthbag comes into contact with the tongue, the pawls I3 and I4 and thesleeve 29 will be in the positions shown inFig. 5. In this:position,`

One arm of the lever 41 isk 4 the abutting face II is almost or entirelyin contact with the abutting member 2i.

During the displacement of the sleeve 4, the right-hand end of thesleeve has forced downwardly the roller 43 with the result that thelevers 4I and 41 now will assume the positions indicated at 4 I'a and41a, respectively (Fig. 5), the spring 48 being tensioned.

When 'the fourth bag actuates the contact device 38, 39,- the lever I9will be moved to the position indicated at I9a in Fig. 6. The sleeve 4will be moved a further step and thereby force, by means of the bar I0and the abutting member 2l, the sleeve 2U, the Istop 24 connectedtherewith and the arm 25 to the right into the positions shown in Fig.6. In this position, the arm 25 closes the switch 21 and thereby startsthe deflecting mechanism for removing the fourth bag of the series fromthe -conveyer band.

Upon displacement of the sleeves 2li and 4, the pawl I3 will bedisengaged from the cooperatingtoothby means of the bevelled face 22 andwill be moved into the position denoted at I3a. To begin with, the pawlI4 is in the position indicated at I4a. When the circuit of the solenoid32 is opened, and, consequently, the pivot I8 of the pawl I4.is returnedfrom the position indicated at I8a tothe position indicated at I8b, thepawl I4, too, will, by means of the bevelled face 23, be disengaged fromthe cooperating tooth and will be moved into the position indicated atI4b. This is necessary in order to render possible the return movementof the sleeve 4 under the action of the spring 5 into the startingposition shown in Fig. l. In order that the pawl I4 shall be enabled toslide outwardly on the bevelled face 23, and kin order that both of thepawls shall be kept out of engagement with the corresponding teethduring the return movement of the sleeve 4, the sleeve 20 must beprevented, during the return movement of the sleeve .4,from beingreturned to the position shown in Figs. 1 and 5. This condition isattained by means of the abutting face 49 which upon displacement of thesleeve 29 into the position shown in Fig. 6 will be brought, by means ofthe spring 48, into engagement with the stop 24 and thereby retain thesleeve 20 during the return movement of the sleeve 4 into the originalposition; In this position, the lever 41 and the abutting face 49 are inthe positions indicated at 41h and 49h, respectively.

When the sleeve 4 has ben returned into the starting position, theroller 43 can be moved inwardly through the opening 44 under the actionof the spring 48. As aresult thereof, the abutting face 49 isdisengagedfrom the stop 24, and all parts of the apparatus will assume theoriginal position shown in'Fig. 1.

Theinvention is obviously notv vlimited to the embodiment shown anddescribed by way of eX- ample, but may be modified in various mannerswithin the scope of the appended claims. f

l. An impulse transmitting apparatus, oomprising a mechanism forinitiating a series of impulses, a'n' limpulse receiver, a movableratchet member adjustable in a starting position, a pivotally mounted'lever, means for transforming impulses from said initiating mechanisminto rocking movements of said lever, a first spring-loaded pawlpivotally mounted on said lever for imparting a series of forward stepsto said ratchet memberja spring device tending to `force said ratchetmember into its starting position, a second springloaded pawl'constructed' to preventsaid ratchet member from returning `Eovvards`said starting position, a control device'fjor determining the number ofsaid forwardv steps,Y a, slidable member adapted to be actuated by saidcontrol device duringthelast forward step of said ratchet member forenergizing said impulse receiver, and a-releasing device adapted to beactuated by said slidable member for disengagingA said pawls4 from saideine nederlanders meer racha member to return to its startingposition.

' '2. impulse Atransrnittingf apparatus, comfprisine a mechanism fretinitiates a Series@ im.- ru'lse, en imma@ receiver. niet/'able' ratchetmember edelstahl@ in e starting positive. e rivetalllfr mounted lever,means fer'ilaesiormieg imwlse'sffrem, Said, initiating mechanism eioosleits movements of: Said. levee a first anririgflaaded pawl raciallymeente@ on said lever ier imitatiing a series of forward steps yto saidratchet mem,- ber, a spring device. tending to force said ratchet memberinto its starting position, a second springloaded pawl constructed toprevent said ratchet member from returning towards said startingposition, a control device for determining the number of said f-orwardsteps, a siidable member adapted to be actuated byv said control deviceduring the last forward step of said ratchet member for energizing saidimpulse receiver, a rst releasing mechanism associated with saidslidable memberv for disengaging sai-,diirst, pawl from seaijd ratchetmember after the last forward step o'fgsaid ratchet member, and asecondrelcasing mechanism associated with said slidable member fordisengagingsaidV second pawl from said ratchet member during the lastforward step ofy said ratchet member, whereby to permit said ratchetmember to return to its starting position.

3. An impulse transmitting apparatus, comprising a mechanism forinitiating a series of impulses, an impulse receiver, a movable ratchetmember adjustable in a starting position, a pivotally mounted lever,means for transforming impulses from said initiating mechanism intorocking movements of said lever, a rst springloaded pawl pivotallymounted on said lever for imparting a series of forward steps to saidratchet member, a rst spring device tending to force said ratchet memberinto its starting position, a second springloaded pawl constructed toprevent said ratchet member from returning towards said startingposition, a control device, means for adjusting the control deviceduring the operation of said apparatus for determining the number ofsaid forward steps, a slidable member adapted to be actuated by saidcontrol device during the last forward step of said ratchet member forenergizing said impulse receiver, a rst releasing mechanism associatedwith said slidable member for disengaging said rst pawl from saidratchet member after the last forward step of said ratchet member, asecond releasing mechanism associated with said slidable member fordisengaging said second pawl from said ratchet member during the lastforward step of said ratchet member, whereby to permit said ratchetmember to return to its starting position, a second spring devicetending to force said releasing mechanisms into inoperative positions,and a catch device for keeping said releasing mechanisms in operativepositions during the return movement of said ratchet member.

4. An impulse transmitting apparatus, comprising a mechanism forinitiating a series of impulses, an impulse receiver, a movable ratchetmember adjustable in a starting position, a pivot- 'ally mounted lever,means fortransfjorming im.-- pulses from said initiating mechanism intorocks ingv movements of said lever, a first spring-.loaded pawlpivotally mounted on said lever for impartinga series of forward stepsto said ratchet mem.-v ber, a spring device tending to force saidratchet meinberinto its starting position, a second spring-f loaded-pawlconstructed to prevent said ratchet member lfrom returning towards saidstarting position, a plurality of movable-control members seeuredto saidratchet lmember and having wor-kingl faces equallyinterspaced in themoving direction of saidratchet member, the distance .betweenconsecutive workingfaces being equal to the length ofone step ofsaid'ratchet member, a, slidable member, an abutting member secured tosaid slidable member! and adapted to be actuated :by one of saideontrolymembers, selecting means ad.- J'ustable during the operation of saidapparatus for selecting: one of said control membersfor engagement withsaid abutting member, witterebvA to determinethe-number of for-'wardsteps of said ratchet member, saidV slidable member: being arranged toenergize said impulse receiver upon engagement between said abuttingmember and said selected control member, and a releasing device adaptedto be actuated by said slidable member for disengaging said pawls fromsaid ratchet member, whereby` to per-mit said ratchet member to returnto itsstarting position.

5. An impulse transmitting apparatus, comprising a mechanism forinitiating a series ofimpulses', an impulse receiver, a movable ratchetmember adjustable a starting position., a pivotally mounted first lever,means for transforming impulses from said initiating mechanism intorocking movements of said first lever, a first springloaded pawlpivotally mounted on said first lever for imparting a series of forwardsteps to said ratchet member, a rst spring device tending to force saidratchet member into its starting position, a second springloaded pawlconstructed to prevent said ratchet member from returning towards saidstarting position, a control device for determining the number of saidforward steps, a slidable member adapted to be actuated by said controldevice during the last forward step of said ratchet member forenergizing said impulse receiver, a first releasing mechanism associatedwith said slid-able member for disengaging said rst pawl from saidratchet member after the last forward step of said ratchet member, asecond releasing mechanism associated with said slidable member fordisengaging said second pawl from said ratchet member during the lastforward step of said ratchet member, whereby to permit said ratchetmem-ber to return to its starting position, a second spring devicetending to force said releasing mechanisms into inoperative positions,a' stop member secured to said slidable member, a pivotally mountedsecond lever movable in response to the rst step of said ratchet member,and a click device associated with said second lever `and ready forengagement with said stop member after said first step of said ratchetmember, said click device being arranged to engage said stop member atthe last step of said ratchet member.

6. An impulse transmitting apparatus, cornprising a mechanism forinitiating a series of impulses, an impulse receiver, a movable ratchetsleeve `adjustable in a starting position and provided with a pluralityof annular teeth, a pivotally mounted lever, means for transformingimpulses from said initiating mechanism into rock- 'ing movements ofsaid lever, a first springloaded pawl pivotally mounted on said leverfor imparting a series of forward steps to said ratchet sleeve, a firstspring device tending to force said ratchet sleeve into itsstartingposition, a second springloaded pawl constructed to prevent saidratchet sleeve from returning towards said starting position, aplurality of bars secured to the periphery of said ratchet sleeve andhaving end faces disposed at equal axial distances from each other, theaxial distance between consecutive end faces being equal to the lengthof one step of said ratchet sleeve, a slidable sleeve disposedconcentrically with respect to and outwardly of said ratchet sleeve, anabutting member secured to the inside of said slidable sleeve andadapted to be actuated by one of said bar end faces, a handle foradjusting said ratchet sleeve into different angular positions, wherebyto select v.one of said bars for engagement with said abutting member, afirst bevelled face provided on the end of said slidable sleeve directedtowards said pawls for disengaging said rst paWl from said ratchetsleeve after the forward movement of said slidable sleeve upon theengagement between said abutting member and said selected bar, a secondbevelled face provided on the end of said slidable sleeve directedtowards said pawls for disengaging said second pawl during said forwardmovement of said slidable sleeve, a second spring device tending toforce said slidable sleeve backwards, a stop member projecting from andsecured to said slidablesleeve, cam -means secured to said ratchetsleeve, a pivotally mounted first two-armed lever one arm of which isadapted to be actuated by said cam means during the first forward stepof said ratchet sleeve, a second twoarmed lever pivotally mounted on theother arm of said first two-armed lever and having an abutting faceready for engagement with said projecting stop member upon theengagement between said gam means and said rst two-armed lever, saidabutting face being arranged to retain said slidable sleeve in theforward end position thereof, a third spring device tending to forcesaid abutting face and said cam actuated lever arm into engagement withsaid stop member and said cam means, respectively, means secured to saidrst two-armed lever for limiting the movement of said second two-armedlever relative to said rst two-armed lever due to the action of saidthird spring device, and Imeans associated with said slidable sleeve forenergizing said impulse receiver at the forward movement of saidslidable sleeve.

JOHN BERTIL RUDOLF KILHOLM.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS

